How is defeating the electronic tracking giving into it?
Accepting the actual wearing of it ... that’s what is wrong whether you cause it to malfunction or not ... the so call Authorities have to be challenged and backed down — wrong is wrong ... pretending wrong is right by disguising it is NOT A SOLUTION. So - one could have tattooed gibberish over a Nazi serial number arm tattoo applied to Jewish people... but it would not have corrected the WRONG of having it done in the first place. So - what happens when the school authorities discover and forcefully remove foil and static bags covering the device? What happens then? ... just WEAR IT ? ... and throw away Constitutional Rights? Surely you Jest?
Referring to the well known phrase of Winston Churchill, it's too late to be haggling about the details when you already signed on the dotted line. This signature will be held against you because of the 27 pages of the fine print that you had to sign when you got the card (and another three books incorporated by reference.) The right thing to do is to reject the card with RFID. Then the student is seen as trying to keep the status quo, and the school is trying to implement new measures that are unacceptable.